Aerial-trolley support.



J. BRYAN H. ETHERIDGE & E; M06. BALSINGER.

' AERIAL TROLLEY SUPPORT.

APPLICATION FILED AVPR. 1a, 1907.

Patented Sepfi'29, 190s.

Attorney.

. Q m I v Inventors v I- a; 9% 6 I UNITED STATE PATENT QFFIGE. 4

JAMES BRYAN, er PITTSBURG, HARRY "ETHER'I GE, or McKEEsP-oe'r, A D EDGAR: cconMAeK BALSINGER, or PITTSBURG, rENNsYLvANIA.;,

men nmomnr sorron'r.

To all whom it may concern," j

Be it known that we, JAMES. BRYAN, a subject of Edward VII, King of Great Britain, and HARRY ETH RIDGE' andEnGAR MCCOR- MACK BALSINGER, citizens of the. United. States, residing at Pittsbiirg, 'McKeesport, and Pittsburg, respectively, in the county of Allegheny and State of Pennsylvania, have invented certain new and; useful Improve i1ig,s,,and to the le'ttersand' figures of refer- "ence mark-edthereon, which form a part of this specification, l Ou'r invention relatesto aerial trolley systems and has for its object the provision of a simple, practical and efficient means ofsu porting the trolley wire, being admiral) y adapted for service inc'onnection withiour improved trolley-wire hanger, filed March 20th, 1907, Serial No. 363,389, and capable ol-.usej with other forms. The form selected by us as best adapte'd to carry out our'invention being fully-shown and described in the accompanying drawings and'fspecifications, and laterointed out the appended claims, in wliich drawings ;v

Figure I. is a vertical. View of a' pole equipped .with 'our imp'royed supporting: one 0 a means. Fig. 1-1 is a vertical section 0 the insulators. Fig. III is a longitudinal section of a portion of the sup orting arm. Fig. IV. is a longitudinal View. i anOth'er rtion of said arm, partly insection. 1 Fig. is alon gitudinal View of one of the insulator pins, partly in section, and Fig. is a plan of the-pole connecting late. I H 'In .the following escrip'tion similar reference characters denote like parts. J'The structure comprises a'plate 1, concaved to engage against the-roundedsurface; of a 'ole2 and connected to. said, pole by bolts 3, said plate having formed thereon a boss 4 with, a" threaded orifice 5 therein- Connected to said plate by means of onset its threaded extremities is a horizontally dis osed tubular member 6, whichis threadabconnected, .at-its- 0 posits end, to the ,so c et, 7, of the similar-y "disposed 'ibular extension piece 8, said piece 8 being provided. with a diagonally disposedlug 9 connected H, Specificationot Letters Patent.

' A Applicatibnfiledhpril18,1907: semimiseasss.

Patented se aee, 190's.-

to a brace rod 10, extending fromi thlfaforee 'ty 0 t e arnL;

said pole to establish I The aforesaid; extension fpiece 8 is further isposed sockets 1 :1 proyided with interior screw threads into which are thread'ably secured the-vertically dis osed hollowinsu lator pins. 12 the lower or me extremities. 142. of which are flared outwardly in a manner similar tothat of a. bell to form ashoulder.

neete thereto are the insulating members bein correspondingly or .c with a. sled shou der 16 and accompanying-Petticoat 1:5 tov extend below the flare 'en' .of

wire 1 7 to; which. is connected 'for the trolley Wire 19.,

Inthe structure disclosed the parts are sim le', practical, etc.,-fand'in consequence of nice am-cally reinforcing the walls of the providing the f shrouding or embrace as extending beyond the threading, we ro ide y suitably adjustlngithe' length of: the

sate for any severe irregularities. in-the' dis; positionof the pole to the track and'thereby manent arrangement of the head ormember 8.; all slight irregularities as to disposition of pole to track are overcome by the slidin'g'ad vantage of trolley ,wire hanger; 18 .on; spanwire17: The span wires 17 are permanently attached to the, insulators and pins, in pairs, before taken out intothe field (thereby mas teriall y. reducing a very expensive feature of all field work) and. when screwed tightly into trolley hanger 18. The easy"?risi11g' and falling action of tires an wire (on account passing trolleytg a mlnin'inml -provided, at its under side, with'downwardly Arranged over these insulatorpins and con 13, hayinga contracted neck 14,;s11111ounded by a pett coat 15, the openings 16 ofisaid iii-j sulat'or members, for en agi 'oyerthe' ins;

Extending horizontally between and cone" nected to said'insulator-members, by m ans, of loops formedat its-extremities tov engage the contracted necks of the'same, is the span the hanger 1 8 tube members 6 and 12 .(which are sensibly" weakened at the threaded, extremities) by a strong and ery serviceable form-o t'rolley.-'

avoid anyinterference or chang'e to the perthe orifices -11 the span'i's ready to receive the,

to horizontally disposed member 6 we compen= Y of the hinging loop e cot vof 1 the spanwiref around the insulator) educes-the blow oi. the

While we have shown and described s ecificallya certain form of structure, capa le of fulfilling the objectsjwe'have in view, we also-recognize and hold that variations in the structure, etc; may be made without departing from the scope, of our invention;

Having thus s own and described an operative' device, we claim as our mvent1on;

posed pole, of a'piate secured thereto and eaded socket, a horizontall disposed tubular. arm-secured in said soc et and provided upon its under side with spaced threaded sockets, downwardly disposed insulator. ins secured in said sockets the free ends 0- each terminating in a bell shape,-,insulators having 0 enings there through corresponding to an engaging over the free ends of said pins and provided with externalgrooves thereabout, a horizontally disposed span-wire engaging about the grooved ortions of and extending between saidinsuhtors, and a brace rod extending from the outer fend'ofthe. arm to and con necting the pole above the arm;

v 2, Thecombination-With' a vertically disposed pole, of a late secured-thereto and provided'withfa t readed socket, a horizontally" disposjedtubular; armseeured in said plate'fs'ocket and comprising. two sections threadablyconnected to one another; the outer section having spaced and threaded sockets upon its under side, downwardly disposed-insulator. pins secured in said sockets. the'f'reaends of each terminating in a bellshaped. mouth, insulators having openings the'rethrough corresponding to and. engaging over the free-ends of said pins and provided with external grooves thereabout, a-horizon- A tally-disposed span wir'e engaging about the grooved portionsof and extending between saidiinsulators- 'iand an a'ngularly disposed connecting the outerrend of-the arm.

' brace rod extending down from the pole and -3. The combination with a vertically disposed pole,:of'a late secured thereto and provided withj-a t readedsocket, a horizonits un erside', downwardly disposed ho ow insulator pins secured in. said sock t th fr e I ends of each terminating in a bell shaped 1. The combination with a vertically dis-' mouth, insulators having 0 enings th re- I through-corres onding to an an aging over the free ends 0 said pins each of w ich 15 pro vided with an amiular groove thercabout with an overhanging etticoat, ahorizontally disposed span-wire engaging about the grooved ortions, of and extending between said insu ators, and an angularly disposed brace rod extending down from the pole and connecting the lug on the end of the arm.

4.'The combination with a vertically dis.- posed pole, ofia Irilate secured thereto and provided with a t readcd socket, a horizontally dis osed tubular arm secured in said plate soc etand formed in sections threadably secured toone another'the outer section havmg'spaced and threaded sockets upon its underside, downwardly disposed insulator pins secured in said sockets the ends of which are flared outwardly, insulators surrounding the flared ends of said pins and projecting there below each of which insulators is pro-- ,vided with an annular groove thereabout with an overhanging etticoat, a horizontally disposed span-wire engaging about the grooved ortions ofand extending between said insu ators, a trolley hanger secured upon said span-wire, and an angularly disposed brace rod extending dow'rrfrom the pole and connecting the outer end of the arm.

In testimony whereof, we affix our signatures, in presence of two witnesses.

Witnesses: I

W. W. HOWARD, J B.- CAMPBELL;

tally disposed tubular arm secured in said. 

